32. What Is Total Alkalinity and Why Does It Matter?
If you have ever chased your pool water problems in circles, total alkalinity is often the hidden reason. I’ve seen it happen countless times: a pool owner adjusts pH, things look better for a week or two, then pH drifts upward again, cloudy water appears, scale starts forming, and suddenly everyone is buying more chemicals when the real issue was buffering all along. Total alkalinity is not as glamorous as “chlorine level” or as dramatic as “green pool,” but it controls